The lovely folks at LunarPages called this morning. I spoke with Shaun who told me they determined what is causing all the CPU fuss...
... the Wootheme on this blog. It's out of date and a total PITA to update. So Goodbye Woo!!
Today, it's change the theme day!! I'm actually thrilled as I wanted to change this theme but never got there. I'm transitioning to a Headway Themes (which I totally love).
See you when the dust clears! :)